Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method for controlling uplink transmit power in a wireless communication system, the method comprising: receiving, by a wireless device, a coverage enhancement (CE) configuration for CE, wherein the CE configuration includes information on at least one CE threshold for determining CE levels and a maximum transmit power applied at each CE level; acquiring, by the wireless device, a measurement value based on a received downlink signal; determining, by the wireless device, a CE level based on the measurement value and the at least one CE threshold; and transmitting, by the wireless device, an uplink channel based on the maximum transmit power for the determined CE level, wherein the at least one CE threshold includes a first CE threshold and a second CE threshold, and wherein determining the CE level includes: determining the CE level as a third CE level based on the measurement value being less than the second CE threshold; determining the CE level as a second CE level based on the measurement value being greater than or equal to the second CE threshold and less than the first CE threshold; and determining the CE level as a first CE level based on the measurement RSRP being greater than or equal to the first CE threshold.
2. The method of claim 1 , wherein the uplink channel includes at least one of a narrowband physical uplink shared channel (NPUSCH) and a narrowband physical random access channel (NPRACH).
3. The method of claim 1 , wherein the uplink channel is transmitted in one resource block including 12 subcarriers.
A method for wireless communication involves transmitting an uplink channel in a single resource block comprising 12 subcarriers. The uplink channel carries data or control information from a user device to a base station in a wireless network. The resource block is a predefined frequency-time allocation in the wireless spectrum, and the 12 subcarriers are evenly spaced within this block to enable efficient data transmission. This method optimizes spectral efficiency by utilizing a compact frequency allocation, reducing overhead and improving throughput. The transmission may occur in a cellular network, such as 4G LTE or 5G NR, where resource blocks are fundamental units for scheduling uplink transmissions. The method ensures compatibility with existing wireless standards while enhancing performance by minimizing resource allocation complexity. The uplink channel may include user data, acknowledgment signals, or other control information, transmitted in a structured format to maintain synchronization and reliability. This approach is particularly useful in scenarios requiring low-latency or high-efficiency communication, such as mobile broadband or IoT applications. The method may also incorporate error correction and modulation techniques to ensure robust transmission over the wireless channel.
4. The method of claim 1 , wherein the uplink channel is transmitted repeatedly over a plurality of slots.
Technical Summary: This invention relates to wireless communication systems, specifically methods for improving uplink channel transmission reliability. The problem addressed is ensuring robust data delivery in challenging radio conditions, such as those with high interference or low signal strength, by enhancing the transmission process of uplink channels. The method involves transmitting an uplink channel repeatedly over multiple time slots. Each transmission occurs in a distinct slot, allowing the receiver to combine the received signals from these multiple transmissions to improve signal quality and reliability. This repetition and combining technique helps overcome issues like fading, interference, and path loss, which can degrade signal integrity in wireless communications. The uplink channel may carry various types of data, including control information, user data, or synchronization signals. The repetition process can be configured based on channel conditions, with more repetitions used in poorer conditions to ensure successful reception. The receiver processes the repeated transmissions by combining them coherently or non-coherently, depending on the system requirements and available resources. This approach is particularly useful in scenarios where the wireless channel is unstable or when the transmitter and receiver are far apart, making signal reception challenging. By repeating the uplink channel over multiple slots, the system achieves higher reliability without requiring additional bandwidth or complex signal processing at the transmitter. The method can be applied in various wireless standards, including 5G, LTE, and other emerging communication technologies.
5. The method of claim 1 , wherein the measurement value includes any one of reference signal received power (RSRP), reference signal received quality (RSRQ), and received signal strength indicator (RSSI).
6. A device for controlling uplink transmit power in a wireless communication system, the device comprising: a transceiver configured to transmit and receive a radio signal; and a processor operatively coupled to the transceiver and configured to: control the transceiver to receive a coverage enhancement (CE) configuration for CE, wherein the CE configuration includes information on at least one CE threshold for determining CE levels and a maximum transmit power applied at each CE level; acquire a measurement value based on a received downlink signal; determine a CE level based on the measurement value and the at least one CE threshold; and control the transceiver to transmit an uplink channel based on the maximum transmit power for the determined CE level, wherein the at least one CE threshold includes a first CE threshold and a second CE threshold, and wherein the processor is configured to determine the CE level as a third CE level based on the measurement value being less than the second CE threshold, determine the CE level as a second CE level based on the measurement value being greater than or equal to the second CE threshold and less than the first CE threshold, and determine the CE level as a first CE level based on the measurement RSRP being greater than or equal to the first CE threshold.
7. The device of claim 6 , wherein the uplink channel includes at least one of a narrowband physical uplink shared channel (NPUSCH) and a narrowband physical random access channel (NPRACH).
8. The device of claim 6 , wherein the uplink channel is transmitted in one resource block including 12 subcarriers.
9. The device of claim 6 , wherein the uplink channel is transmitted in one resource block including 12 subcarriers.
10. The device of claim 6 , wherein the measurement value includes any one of reference signal received power (RSRP), reference signal received quality (RSRQ), and received signal strength indicator (RSSI).
This invention relates to wireless communication devices, specifically those configured to measure and utilize signal quality metrics for network selection or handover decisions. The device includes a signal measurement module that evaluates wireless signals from one or more base stations or access points. The key innovation involves the measurement value, which can be any of reference signal received power (RSRP), reference signal received quality (RSRQ), or received signal strength indicator (RSSI). These metrics are used to assess signal strength and quality, enabling the device to determine the best available network connection. The device may also include a processing unit that analyzes the measurement values to make decisions about network attachment, handover, or signal optimization. The system ensures reliable connectivity by dynamically selecting the strongest or most stable signal based on the measured parameters. This approach improves user experience by minimizing connection drops and optimizing data throughput in varying network conditions. The invention is particularly useful in mobile devices operating in heterogeneous networks where multiple signal sources are available.
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March 2, 2021
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